Infestation of pest attacks and its impact on the yield of organic sweet corn in lowland
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Abstract
Organic sweet corn still challenges, especially related to pest attacks. Farmers' pest control efforts currently use chemical pesticides that are not environmentally friendly. Integrated pest control techniques are increasingly developing along with increasing awareness of the importance of environmentally friendly sustainable agriculture. One component of integrated pest control is the use of pest-resistant varieties. The results showed that of the 17 sweet corn hybrid varieties evaluated, the variety with the highest level of attack (susceptibility) to O. furnacalis, H. armigera, and S. frugiperda was Caps15 x Caps22. The highest O. furnacalis attack found in Caps15 x Caps22 was 33% and significantly different from the comparison varieties Paragon and Bonanza, and the highest H. armigera attack found in the same variety Caps15 x Caps22 was 31%, but not significantly different from the comparison varieties Paragon and Bonanza, as well as the highest scoring S. frugiperda attack was found in the same variety. The highest yield was 16.05 tons/ha, the diameter of the cob with husk was 300.93 mm and the weight of the cob with husk was 56.73 g on Caps15 x Caps23 and was not significantly different from the comparison variety Paragon with a yield of 17.87 tons/ha, the diameter of the cob with husk was 335.06 mm and the weight of the cob with husk was 57.3 g.
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